Defibrillator electrode

Details Defibrillator electrode Defibrillator electrode

A - Human Necessities

61

N

326/17.5

A61N 1/05 (2006.01)

Patent

CA 1290025

ABSTRACT OF THE DISCLOSURE A patch-type defibrillator electrode for direct contact with the heart has a thin, flat, flexible generally circular mesh or foil conductive member with a pattern of slits for enabling con- tinuous contact with the three dimensional, time-varying heart surface topography. The slit pattern includes two pairs of non- intersecting semicircular slits oriented along mutually perpen- dicular axes, and interior portions of the conductive member are flexibly movable in a direction normal to the plane member and are flexibly tiltable about the axes to provide the conforming contact. The slits may also be radial slits which do not meet at the center so the leaves of conductive members are independently mobile with respect to every other leaf. A Dacron envelope having a thrombus formation inhibiting agent surrounds the con- ductive member including the peripheral edges to reduce the risk of tissue burning from current supplied to the center of the con- ductive member by an electrode lead.

521060

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